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Finding the Fourth Proportional to 207,038.64, 285,854.96 and 158,555.02

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Solution

The fourth proportional to 207,038.64, 285,854.96 and 158,555.02 is: 218,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,038.64 : 285,854.96 = 158,555.02 : x
  2. Step 2: Convert to fraction form
    207,038.64/285,854.96 = 158,555.02/x
  3. Step 3: Cross multiply
    207,038.64x = 285,854.96 × 158,555.02
  4. Step 4: Simplify right side
    207,038.64x = 45,323,738,899.90
  5. Step 5: Solve for x
    x = 45,323,738,899.90/207,038.64
  6. Step 6: Final answer
    x = 218,914.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.